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| Description: A syllogism inference from two biconditionals. |
| Ref | Expression |
|---|---|
| syl6bbr.1 |
|
| syl6bbr.2 |
|
| Ref | Expression |
|---|---|
| syl6bbr |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | syl6bbr.1 |
. 2
| |
| 2 | syl6bbr.2 |
. . 3
| |
| 3 | 2 | bicomi 170 |
. 2
|
| 4 | 1, 3 | syl6bb 539 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: 3bitr4g 558 biorf 740 equsal 1188 necon3bid 1644 necon2abid 1666 eueq3 1965 sbc3ang 2027 sbcrext 2041 sbcrexgf 2043 sbcabel 2046 sbcel12g 2062 sbceqdig 2063 r19.3rzv 2402 r19.9rzv 2403 dfiun2g 2654 iununi 2686 otthg 2866 copsexg 2868 sotrieq 2940 ordelpss 3003 reuuni1 3106 ordsucun 3180 onsucuni2 3188 dfom2 3220 peano5 3241 asymref2 3532 xp11a 3562 xp11b 3563 fcnvres 3755 dffn5 3869 fnrnfv 3870 funimass4 3874 funimass3 3920 dff4 3932 fconst4 3965 elunirnALT 3983 eqfnoprv 4076 ordgt0ge1 4280 oelim2 4358 oaabs 4392 pw2en 4587 mapxpen 4642 r1pw 4832 rankonid 4841 aceq5lem4 4884 brdom6disj 4951 cardalephex 5036 indpi 5188 ltmpq 5231 distrlem5pr 5285 prlem934b 5292 suplem2pr 5316 letri3 5671 leltne 5675 xrleltne 5712 halfpos 6182 rpneg 6211 zrevaddcl 6338 elnnnn0 6340 znnsub 6345 znn0sub 6346 prime 6366 dfuzi 6373 qrevaddcl 6414 icounlem 6539 eluz2 6548 indstr 6588 om2uzf1oi 6664 lt2sqi 6821 le2sqi 6822 cau2i 7116 clm4fi 7285 clmnnsi 7287 clmfnn 7296 tgval3 7837 opnssneib 7939 islp2 7957 cldlp 7960 cncnplem3 7986 cncnplem4 7987 sncld 7997 metn0 8031 iscauf 8150 iscau5 8152 iscaunns 8155 caun0 8156 metcld 8178 nmolb 8688 nmlno0lem 8708 pilem3 8940 efif1lem1 9002 efif1lem2 9003 h2hcau 9124 h2hlm 9125 ocsh 9432 shle0 9642 eigrei 10040 nmoplb 10111 nmfnlb 10128 eleigvec2 10162 nmlnop0iALT 10199 jplem2 10477 cvbr2 10491 mdsl2bi 10531 chrelat3 10579 elghom 10669 r19.3rzvb 10721 letri31 10791 unpde2eg2 10825 iint 11157 algi 11181 rdmob 11202 ccid 11412 elfiun 11421 inficlALT 11424 omsubsuc2 11439 hscptsscld 11491 alexsub 11500 limfilcf 11683 hausfillim 11685 fcluscf 11724 flimfnfcls 11727 inpreima 11793 inficl 11849 fzsn 11865 fzpr 11866 iccsplit 11919 heiborlem1 12011 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |
| This theorem depends on definitions: df-bi 145 df-an 223 |